Cl[C:2]1[C:7]2=[C:8]([CH3:16])[C:9]([C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:10][N:6]2[N:5]=[CH:4][N:3]=1.[F:17][C:18]1[CH:23]=[C:22]([N+:24]([O-:26])=[O:25])[CH:21]=[CH:20][C:19]=1[OH:27].C([O-])([O-])=O.[K+].[K+].CN(C=O)C>O>[F:17][C:18]1[CH:23]=[C:22]([N+:24]([O-:26])=[O:25])[CH:21]=[CH:20][C:19]=1[O:27][C:2]1[C:7]2=[C:8]([CH3:16])[C:9]([C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:10][N:6]2[N:5]=[CH:4][N:3]=1
To a mixture of ethyl 4-chloro-5-methylpyrrolo[2,1-f][1,2,4]triazine-6-carboxylate (24 mg, 0.10 mmol, preparation: See, U.S. Pat. No. 6,670,357, especially example 61, the disclosure of which is hererin incorporated by reference), 2-fluoro-4-nitrophenol (20 mg, 0.125 mmol) and K2CO3 (28 mg, 0.20 mmol) was added DMF (0.5 mL). The reaction was heated at 70° C. for 20 minutes, cooled to room temperature and 2 mL of water was added. The mixture was filtered, the solid was washed with water, and dried to give the title compound (36 mg, 100%) as a light yellow solid.
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